<?php
$jige = 75;
$css = 80;
$js = 90;
$wangye = 80;
$avg =($css + $js + $wangye )/3;
$avg = round ($avg,2);
?>
<!doctype html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Document</title>
    </head>
    <body>
        <p>abc</p>
        平均分的及格线=<?php echo $jige ;?></br>
        样式表=<?php echo $css;?></br>
        网页设计=<?php echo $wangye ; ?></br>
        Js=<?php echo $js ; ?></br>
        你的平均分=<?php echo $avg ; ?></br>
        你的分数：<?php if($avg >= $jige) : ?>
        <span style="color: green">及格</span>
        <?php else :?>
        <span style="color: red">不及格</span>
        <?php endif;?>
    </body>
